Anode insulation material suction device and method

Abstract

The present invention discloses an anode insulation material suction device and method, comprising a protective frame and a storage box, both of which are arranged on a mobile device of an overhead crane. The storage box is connected to a discharge pipe, and further comprises a reel body and a screening box. The reel body is wound with a suction pipe, the reel body is rotatably arranged within the protective frame, a negative pressure suction structure is provided within the reel body, the negative pressure suction structure is connected to the suction pipe, one side of the reel body is connected to a discharge structure, a screening box is connected to one side of the storage box, the screening box is connected to the discharge structure, a crushed material screening mechanism is provided within the screening box for screening the insulation crushed material into insulation powder and insulation crushed material, and a block material conveying pipeline is provided on one side of the storage box. The present invention provides an anode insulation material suction device and method to solve the problem in the prior art that the insulation crushed material discharged by the suction device has large volume differences, which affects the integrity of the subsequently formed insulation shell.

Description

Technical Field

[0001] The present invention relates to the technical field of anode replacement, and in particular to an anode insulation material suction device and method. Background Art

[0002] An aluminum reduction cell is a state-of-the-art device used to produce electrolytic aluminum. Modern aluminum reduction production utilizes cryolite-alumina molten salt electrolysis, with molten cryolite serving as the solvent, alumina as the solute, carbonaceous bodies as the anode, and aluminum liquid as the current carrier. A carbon block serves as the cathode (the cathode is not consumed) at the bottom of the cell. Powerful direct current is applied, and an electrochemical reaction proceeds within the molten electrolyte at temperatures between 950°C and 970°C: anode-electrolyte solution-aluminum liquid-cathode (the primary chemical reaction is between the molten electrolyte and the anode). Aluminum powder / aluminum ore (aluminum oxide) is added to the cell, and the carbonaceous bodies are lowered into contact with the anodes. As the aluminum reduction operation continues, the carbonaceous bodies are consumed. After a fixed period of use, they become spent anodes, requiring replacement using PTM equipment.

[0003] PTM equipment refers to an aluminum electrolysis multifunctional unit, which uses an overhead crane as a mobile equipment carrier to drive the movement of various equipment used to replace the scrap anodes, so that multiple devices are started in sequence to complete the scrap anode replacement operation. It will move to the upper side of the corresponding aluminum electrolysis cell, and remove the scrap anodes in the aluminum electrolysis cell by using the aluminum electrolysis multifunctional unit, and then move the new anode back into the aluminum electrolysis cell to complete the anode replacement operation.

[0004] When the anode in the aluminum electrolytic cell is replaced as described above, a layer of insulation shell will remain on the surface of the residual anode carbon body after electrolysis. The insulation shell is broken into insulation fragments by shelling the insulation shell, and then the insulation fragments broken off are sucked through the suction pipe by the suction device. After the anode is replaced and placed in the aluminum electrolytic cell, the insulation fragments need to be re-added to the surface of the anode carbon body through the discharge pipe, so as to be used for the subsequent electrolysis of the anode carbon body. The generated heat will not dissipate excessively into the aluminum electrolytic cell, and the insulation fragments will become a layer of shell attached to the surface of the carbon body under the action of high temperature. However, due to the limitations of the on-site construction environment, it is difficult for operators to break the insulation shell into insulation fragments of equal volume when performing shelling operations. Therefore, the insulation fragments discharged by the subsequent suction device will be mixed with large residues. The insulation fragments with a large difference in volume will cause cracks in the formed insulation shell during the high-temperature sintering process, affecting the insulation effect during the electrolysis of the anode carbon body. Summary of the Invention

[0005] In response to the deficiencies of the prior art, the present invention provides an anode insulation material suction device and method to solve the problem raised in the background art that the volume of insulation fragments discharged by the suction device in the prior art varies greatly, affecting the integrity of the insulation shell formed subsequently.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an anode insulation material suction device, comprising a protective frame and a storage box, wherein the protective frame and the storage box are both arranged on a mobile device of an overhead crane, and the storage box is connected to a discharge pipe, and further comprising:

[0007] A reel body, a suction pipe is wound on the reel body, the reel body is rotatably arranged in the protective frame, a negative pressure suction structure is arranged in the reel body, the negative pressure suction structure is connected to the suction pipe, and a discharge structure is connected to one side of the reel body;

[0008] A screening box is connected to one side of the storage box, the screening box is connected to the discharge structure, a material screening mechanism for screening the heat-insulating crushed materials into heat-insulating powder and heat-insulating crushed materials is provided in the screening box, and a block material conveying pipeline is provided on one side of the storage box.

[0009] The heat-insulating powder is discharged into the storage box through the screening box, and then discharged through the discharge pipe;

[0010] The heat-insulating blocks are discharged into the block conveying pipeline through the screening box, and the block conveying pipeline is fixedly connected to the discharge pipe.

[0011] In order to realize the operation of absorbing the insulation scraps, the winding shaft is further arranged to be tilted and rotated in the protective frame, the interior of the winding shaft is set as a cavity, the negative pressure suction structure is arranged in the cavity, and a spiral fixing groove is opened on the outer wall of the winding shaft, and the suction pipe is fitted with the inner wall of the spiral fixing groove.

[0012] In order to absorb the insulation scraps in the aluminum electrolytic cell, the negative pressure suction structure further includes a feeding cylinder, a negative pressure suction device and a discharge pipe. The feeding cylinder is arranged in the cavity, and one end of the suction pipe passes through the winding shaft and is connected to the feeding cylinder. The negative pressure suction device is located in the cavity, and the feeding end of the negative pressure suction device is rotatably connected to the feeding cylinder, and the discharge end of the negative pressure suction device is connected to the discharge pipe.

[0013] In order to discharge and transport the heat-insulating crushed materials, the discharge structure further includes a discharge cylinder and a receiving sleeve, the discharge cylinder is fixedly connected to one side of the winding shaft, and the discharge cylinder is communicated with the cavity, and the discharge pipe extends into the discharge cylinder, wherein a discharge groove is opened on the circumference of the discharge cylinder, and the receiving sleeve is rotatably sleeved on the outside of the discharge cylinder, and one side of the receiving sleeve is connected to a discharge channel, and one side of the discharge channel is communicated with the top of the screening box.

[0014] The conveyor belt is equipped with a plurality of scraper plates, each of which is connected to the bottom surface of the flexible screening layer, and the scraper plates drive the heat preservation block materials on the surface of the flexible screening layer to move downward, and the scraper plates also drive the screened heat preservation powder materials to move into the storage box.

[0015] In order to convey the thermal insulation blocks into the block conveying pipeline, further, a hopper body is fixedly connected to one side of the storage box body, the block discharge chamber is connected to the hopper body, and the block conveying pipeline is connected to the bottom of the hopper body.

[0016] In order to drive the discharge pipe and the block material conveying pipeline to rise, further, a lifting trough frame is fixedly connected to one side of the storage box, and a bending lifting frame is longitudinally slidingly arranged in the lifting trough frame. The bottom of the bending lifting frame is fixedly connected to a concave fixing seat, and both sides of the concave fixing seat are rotatably connected to multiple guide wheels. The discharge pipe and the block material conveying pipeline are both located between the multiple guide wheels on both sides.

[0017] In order to drive the suction pipe to move laterally, the bottom of the protective frame is further connected to a transverse movement groove body, and a moving sleeve is laterally slidably connected in the transverse movement groove body, and the suction pipe extends into the moving sleeve.

[0018] In order to make the suction pipe drop vertically, further, a counterweight ring sleeve is provided on the bottom fixing sleeve of the suction pipe.

[0019] The anode insulation material suction method uses the above-mentioned anode insulation material suction device and includes the following steps:

[0020] Step 1: Unwinding: After the operator completes the shelling operation on the surface of the carbon body of the residual anode in the aluminum electrolysis cell, the operator moves the suction pipe to the designated position by using the overhead crane to move the equipment. The reel shaft is driven to rotate to unwind the suction pipe, and the bottom of the suction pipe is moved into the aluminum electrolysis cell.

[0021] Step 2: Suction: Start the negative pressure suction device to absorb the heat-insulating scrap in the aluminum electrolytic cell. The heat-insulating scrap enters the feed cylinder along the suction pipe. Then, under the action of the negative pressure suction device, the heat-insulating scrap is transported to the discharge cylinder through the discharge pipe.

[0022] Step 3: Reset: After the insulation scraps are sucked, the suction tube is reeled in by the reeling shaft. After completion, the operator can perform the subsequent anode replacement operation.

[0023] Step 4: Screening: All the insulation scraps are moved into the block material discharge chamber, and the insulation scraps will move downward on the flexible screening layer, and will be screened by the flexible screening layer. The screened insulation powder will pass through the flexible screening layer and enter the powder material discharge chamber, and fall onto the surface of the circulating conveyor belt. The insulation powder moves into the material storage box, and the insulation blocks are moved into the receiving hopper and the block material conveying pipeline;

[0024] Step 4: Sorting: After the anode is replaced, the bending lifting frame is driven downward to lower the discharge pipe and the block material conveying pipeline together, so that the discharge pipe is moved into the aluminum electrolytic cell, and the insulation powder is added to the surface of the anode carbon body in the aluminum electrolytic cell, and the insulation block material can be discharged through the block material conveying pipeline.

[0025] Compared with the prior art, the present invention provides an anode insulation material suction device and method, which has the following beneficial effects:

[0026] In the present invention, during the process of absorbing and discharging the insulation chips during the replacement of the anode, the suction pipe is first moved into the insulation chips in the aluminum electrolytic cell, the insulation chips are sucked into the negative pressure suction structure through the suction pipe, and then the insulation chips are discharged into the screening box through the discharge structure. The insulation chips are screened into two types, insulation powder and insulation chips, in the screening box, and the insulation powder is directly transported to the storage box. When the insulation powder needs to be refilled on the anode carbon body later, the discharge pipe is moved into the aluminum electrolytic cell, and the insulation powder is refilled to the surface of the anode carbon body, and the screened insulation chips are discharged through the block material conveying pipeline. The screened insulation powder is used as the insulation material on the surface of the anode carbon body, so that the insulation shell after subsequent high-temperature sintering is more complete, which effectively improves the thermal insulation of the anode carbon body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the protective frame, storage box and overhead traveling equipment in this application;

[0028] Figure 2 A schematic diagram of the overall structure of this application;

[0029] Figure 3 This is a schematic diagram of the structure of a partial cross-section of this application;

[0030] Figure 4 For this application Figure 3 Schematic diagram of the local enlarged structure at A in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the present application from another perspective of partial section;

[0032] Figure 6 This is a partial cross-sectional structural diagram of the coordination of the reel body, the suction pipe, the negative pressure suction device and the reel sleeve in this application;

[0033] Figure 7 This is a schematic diagram of the structure of the winding shaft and the spiral fixing groove in this application;

[0034] Figure 8 It is a partial cross-sectional structural diagram of the slope frame, block material discharge chamber, powder material discharge chamber, flexible screening layer and circulating conveyor belt in this application.

[0035] Figure: 1. Protective frame; 2. Storage box; 3. Overhead crane mobile device; 4. Feeding pipe; 5. Reeling shaft; 6. Suction pipe; 7. Screening box; 8. Lump material conveying pipeline; 9. Spiral fixing trough; 10. Feed cylinder; 11. Negative pressure suction device; 12. Discharge pipe; 13. Discharge cylinder; 14. Receiving sleeve; 15. Discharge channel; 16. Slope frame; 17. Lump material discharge chamber; 18. Powder material discharge chamber; 19. Flexible screening Layer; 20. Circular conveyor belt; 21. Scraper; 22. hopper body; 23. Lifting trough frame; 24. Bending lifting frame; 25. Concave fixing seat; 26. Guide wheel; 27. Transverse trough body; 28. Moving sleeve; 29. Counterweight ring; 30. Gear box; 31. First drive motor; 32. Transmission shaft; 33. Second drive motor; 34. Transmission screw; 35. Third drive motor; 36. Positioning screw; 37. Fourth drive motor. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] For example 1, please refer to Figures 1 to 8 The anode insulation material suction device includes a protective frame 1 and a storage box 2. The protective frame 1 and the storage box 2 are both arranged on a crane mobile device 3. The crane mobile device 3 is an existing technical device in the prior art for driving the aluminum electrolysis multifunctional unit to move in all directions in the aluminum electrolysis workshop, so as to move the aluminum electrolysis multifunctional unit to the top of the corresponding aluminum electrolysis cell and then complete the replacement operation of the anode in the aluminum electrolysis cell;

[0038] The aluminum electrolysis multifunctional unit includes a shelling device, a scrap electrode grabbing mechanism, a suction device and a residue scooping device. When the scrap electrode needs to be replaced, the operator first needs to lift the cover of the corresponding aluminum electrolysis cell, and then use the overhead crane mobile device 3 to drive multiple devices to move to the upper side of the corresponding aluminum electrolysis cell, first drive the shelling device to descend, and crush the insulation material residue on the four sides of the surface of the scrap electrode, and then use the suction device to descend to suck the insulation material residue to the upper side of the overhead crane, and then use the scrap electrode grabbing mechanism to grab the scrap electrode, and move the scrap electrode out of the aluminum electrolysis cell. After the scrap electrode is moved and placed in a designated position, the grabbing mechanism is used to grab a new anode, and then the anode is moved into the aluminum electrolysis cell, and the suction device is used to add the previously collected insulation material residue as insulation material to the surface of the anode, and then the metal guide rod on the anode is connected to the busbar on the aluminum electrolysis cell, and the anode is powered by the busbar, and then the anode is electrolyzed with aluminum liquid in the aluminum electrolysis cell;

[0039] The aluminum electrolysis multifunctional unit can drive the shelling equipment, the residual pole grabbing mechanism, the suction device and the residue scooping equipment to move along the fixed center point, and is used to adjust the shelling equipment, the residual pole grabbing mechanism, the suction device and the residue scooping equipment to the positions corresponding to the aluminum electrolysis cell in sequence, and the protective frame 1 and the storage box 2 in the present invention will also move along the same fixed center point.

[0040] The storage box 2 is connected to a discharge pipe 4. After the new anode carbon body is moved into the aluminum electrolytic cell, the bottom of the discharge pipe 4 is moved to the upper side of the anode carbon body, and then the insulation material is added to the surface of the anode carbon body. The operator can spread the insulation material flat on the surface of the anode carbon body. During the subsequent electrolysis operation, the insulation material will be sintered to the surface of the anode carbon body under high temperature to form an insulation shell.

[0041] The utility model also includes a winding shaft body 5, a material suction tube 6 is wound on the winding shaft body 5, the winding shaft body 5 is rotatably arranged in the protective frame 1, the winding shaft body 5 is tilted and rotatably arranged in the protective frame 1, the interior of the winding shaft body 5 is set as a cavity, the negative pressure material suction structure is set in the cavity, a spiral fixing groove 9 is opened on the outer wall of the winding shaft body 5, the material suction tube 6 is in contact with the inner wall of the spiral fixing groove 9, a gear box 30 is provided on one side of the winding shaft body 5, a first drive motor 31 is provided on the protective frame 1, and the output end of the first drive motor 31 is connected to the gear box 30 for transmission. When the suction tube 6 needs to be wound or unwound, the first drive motor 31 is started, and the winding shaft 5 is driven to rotate through the transmission cooperation among the first drive motor 31, the gear box 30 and the winding shaft 5 to wind up or unwind the suction tube 6. When the suction tube 6 is wound, the suction tube 6 can be wound onto the winding shaft 5 along the arc opened by the spiral fixing groove 9, and the suction tube 6 contacts the inner wall of the spiral fixing groove 9. By keeping the winding shaft 5 tilted, the insulation material can be better moved to the side of the discharge structure.

[0042] The negative pressure suction structure is provided in the winding shaft body 5, and the negative pressure suction structure is connected with the suction pipe 6. The negative pressure suction structure includes a feeding cylinder 10, a negative pressure suction device 11 and a discharge pipe 12. The feeding cylinder 10 is arranged in a cavity, and one end of the suction pipe 6 passes through the winding shaft body 5 and is connected with the feeding cylinder 10. The negative pressure suction device 11 is located in the cavity, and the feeding end of the negative pressure suction device 11 is rotatably connected to the feeding cylinder 10, and the discharge end of the negative pressure suction device 11 is connected with the discharge pipe 12. The negative pressure suction device 11 is a prior art device well known to those skilled in the art. A device that can generate negative pressure adsorption operation, such as a Roots blower, can be used to generate negative pressure suction in the suction pipe 6 to adsorb the heat-insulating scraps in the aluminum electrolytic cell. The heat-insulating scraps enter the feeding cylinder 10 along the suction pipe 6, and then, under the action of the negative pressure suction device 11, the heat-insulating scraps are transported to the discharge cylinder 13 through the discharge pipe 12;

[0043] One side of the winding shaft 5 is connected with a discharge structure, which includes a discharge cylinder 13 and a receiving sleeve 14. The discharge cylinder 13 is fixedly connected to one side of the winding shaft 5, and the discharge cylinder 13 is connected to the cavity, and the discharge pipe 12 extends into the discharge cylinder 13, wherein a discharge trough is opened on the circumference of the discharge cylinder 13, and the receiving sleeve 14 is rotatably sleeved on the outside of the discharge cylinder 13, and one side of the receiving sleeve 14 is connected with a discharge channel 15, and one side of the discharge channel 15 is connected with the top of the screening box 7 to transport the heat-insulated crushed materials into the discharge cylinder 13, and the discharge cylinder 13 rotates together with the winding shaft 5, so that the heat-insulated crushed materials filled in the discharge cylinder 13 are discharged into the receiving sleeve 14 through the discharge trough in turn, and the heat-insulated crushed materials enter the screening box 7 through the discharge channel 15, so that the heat-insulated crushed materials can be screened subsequently;

[0044] Because the discharge cylinder 13 and the winding shaft 5 are both inclined, the insulation scraps are discharged directly into the discharge cylinder 13 after being discharged through the discharge pipe 12. However, since the insulation scraps will generate dust during the discharge process, the insulation scraps are difficult to escape into the cavity of the winding shaft 5 because the discharge cylinder 13 is inclined.

[0045] The receiving sleeve 14 is fixedly connected to a mounting slot frame, which extends into the cavity of the winding shaft 5 . The mounting slot frame is fixedly connected to the negative pressure suction device 11 and is used to support the negative pressure suction device 11 in the cavity of the winding shaft 5 .

[0046] The screening box 7 is connected to one side of the storage box 2, and the screening box 7 is connected to the discharge structure. A crusher screening mechanism for screening the heat-insulating crushed material into heat-insulating powder and heat-insulating crushed material is provided in the screening box 7. A block conveying pipeline 8 is provided on one side of the storage box 2, wherein the heat-insulating powder is discharged into the storage box 2 through the screening box 7 and then discharged through the discharge pipe 4, and the heat-insulating block is discharged into the block conveying pipeline 8 through the screening box 7. The block conveying pipeline 8 is fixedly connected to the discharge pipe 4. The heat-insulating crushed material is added into the screening box 7 from the top of the screening box 7 through the discharge channel 15, so that the heat-insulating crushed material is screened by the crusher screening mechanism in the screening box 7, and then the screened heat-insulating powder and heat-insulating block are conveyed separately, so that the heat-insulating powder can be continuously added to the aluminum electrolytic cell for use as heat-insulating material, while the heat-insulating block is directly discharged and used after other processing;

[0047] The crushed material screening mechanism includes a slope frame 16, a flexible screening layer 19 and a circulating conveyor belt 20. The slope frame 16 is fixedly connected to the screening box 7. A through groove is provided on the slope surface of the slope frame 16. The slope frame 16 divides the screening box 7 into a block discharge chamber 17 and a powder discharge chamber 18. The powder discharge chamber 18 is connected to the storage box 2. A flexible screening layer 19 is provided in the through groove. The flexible screening layer 19 is used to screen the heat-insulating crushed material into heat-insulating powder and heat-insulating crushed material. The heat-insulating powder falls into the powder discharge chamber 18. The circulating conveyor belt 20 is arranged on the slope frame 1 6, a plurality of scraper plates 21 are fixedly connected to the outer side of the circulating conveyor belt 20, and the scraper plates 21 are in contact with the bottom of the flexible screening layer 19. The scraper plates 21 drive the insulation blocks on the surface of the flexible screening layer 19 to move downward, and the scraper plates 21 also drive the screened insulation powder to move into the storage box 2. A plurality of transmission shafts 32 are rotatably connected in the screening box 7, and a transmission wheel is provided on the transmission shaft 32. The transmission of the circulating conveyor belt 20 is set between the plurality of transmission wheels. A second drive motor 33 is provided on the screening box 7, and the output end of the second drive motor 33 is fixedly connected to one of the transmission shafts 32;

[0048] After all the heat-insulating crushed materials are moved into the block material discharge chamber 17, the heat-insulating crushed materials will move downward on the flexible screening layer 19, and the heat-insulating crushed materials will be screened by the flexible screening layer 19, and the screened heat-insulating powder will pass through the flexible screening layer 19 and enter the powder material discharge chamber 18, and the heat-insulating powder will fall onto the surface of the circulating conveyor belt 20. Under the action of the scraper 21, the heat-insulating powder will move into the storage box 2. A mechanical discharge device is also provided between the bottom of the storage box 2 and the discharge pipe 4, for discharging the heat-insulating powder in the storage box 2 through the discharge pipe 4;

[0049] Because the scraper plate 21 is in contact with the bottom of the flexible screening layer 19, the speed and screening effect of the thermal insulation debris moving on the flexible screening layer 19 can be improved, and the scraper plate 21 is in reciprocating contact with the flexible screening layer 19, so that the thermal insulation debris on the upper surface of the flexible screening layer 19 moves toward the bottom side, avoiding the problem of thermal insulation debris being retained on the flexible screening layer 19.

[0050] A receiving hopper body 22 is fixedly connected to one side of the storage box body 2, and the block material discharge chamber 17 is connected to the receiving hopper body 22. In the pipe connecting the block material discharge chamber 17 and the receiving hopper body 22, in order to ensure that the block material enters the receiving hopper body 22 smoothly, relevant technical equipment with a negative pressure suction function can be set between the block material discharge chamber 17 and the receiving hopper body 22, which is used to transport the block material discharged from the block material discharge chamber 17 to the receiving hopper body 22. The block material conveying pipeline 8 is connected to the bottom of the receiving hopper body 22, and the insulation block material discharged through the block material discharge chamber 17 is moved into the receiving hopper body 22 and the block material conveying pipeline 8. When the discharge pipe 4 moves downward, the block material conveying pipeline 8 is driven to descend together. When the discharge pipe 4 conveys the insulation powder into the aluminum electrolytic cell, the block material conveying pipeline 8 can also discharge the insulation block material in time.

[0051] It should be noted that, regarding the overall conveying path of the airflow generated during the suction process of the insulation material and the insulation crushed material, the airflow first follows the insulation crushed material along the suction pipe 6 into the feed cylinder 10, and then the airflow and the insulation crushed material are discharged into the discharge cylinder 13 through the negative pressure suction device 11 and the discharge pipe 12, and then transported to the screening box 7 through the discharge cylinder 13. After the insulation crushed material is sorted into powder and block material, the airflow can pass through the receiving hopper 22. And the block material conveying pipeline 8 is discharged, and when the bending lifting frame 24 drives the discharge pipe 4 and the block material conveying pipeline 8 to rise, the block material conveying pipeline 8 will bend upward, so that the block material is retained on the receiving hopper body 22 and the block material conveying pipeline 8, and when the bending lifting frame 24 drives the bottom of the block material conveying pipeline 8 to descend, the block material conveying pipeline 8 will be discharged through the block material conveying pipeline 8 after the block material conveying pipeline 8 tilts downward as a whole. A control valve can be installed at the bottom of the block material conveying pipeline 8 to prevent leakage.

[0052] One side of the storage box 2 is fixedly connected to a lifting trough frame 23, and a bending lifting frame 24 is longitudinally slidably provided in the lifting trough frame 23. The bottom of the bending lifting frame 24 is fixedly connected to a concave fixing seat 25, and both sides of the concave fixing seat 25 are rotatably connected to multiple guide wheels 26. The discharge pipe 4 and the block material conveying pipeline 8 are both located between the multiple guide wheels 26 on both sides. A transmission screw 34 is rotatably provided in the lifting trough frame 23, and the bending lifting frame 24 is matched with the transmission screw 34 for transmission. A third drive motor 35 is provided on the top of the lifting trough frame 23, and the output end of the third drive motor 35 is connected to the transmission screw 34. The movable screw 34 is fixedly connected, and the third drive motor 35 is started to drive the transmission screw 34 to rotate, so that the bending lifting frame 24 moves longitudinally in the lifting trough frame 23. By moving the bending lifting frame 24, the bottom height of the discharge pipe 4 and the block material conveying pipeline 8 can be adjusted, and the discharge pipe 4 and the block material conveying pipeline 8 are both lowered to the specified position. During the movement of the discharge pipe 4 and the block material conveying pipeline 8, the discharge pipe 4 and the block material conveying pipeline 8 are moved between the multiple guide wheels 26 in the concave fixed seat 25, so that the discharge pipe 4 and the block material conveying pipeline 8 can move smoothly on the bending lifting frame 24.

[0053] The bottom of the protective frame 1 is connected to a transverse trough 27, and a movable sleeve 28 is connected to the transverse sliding trough 27 for transverse sliding. The suction pipe 6 extends into the movable sleeve 28, and a positioning screw 36 is rotatably connected to the transverse trough 27. A fourth drive motor 37 is provided on the transverse trough 27, and the output end of the fourth drive motor 37 is fixedly connected to the positioning screw 36. The movable sleeve 28 cooperates with the positioning screw 36 in transmission. Because it is necessary to fully absorb the heat-insulating scraps around the rectangular carbon body, the fourth drive motor 37 is started to drive the positioning screw 36 to rotate, and the movable sleeve 28 is driven to move transversely in the transverse trough 27, thereby adjusting the falling position of the suction pipe 6, so that the suction pipe 6 can cover more suction areas;

[0054] The bottom fixed sleeve of the suction pipe 6 is provided with a counterweight ring sleeve 29. In order to ensure that the suction pipe 6 can drop straight down after being unwound, the counterweight ring sleeve 29 makes the suction pipe 6 drop vertically.

[0055] The working principle or use process of the anode insulation material suction device is as follows:

[0056] First, after the operator completes the shelling operation on the surface of the carbonaceous body of the residual anode in the aluminum electrolysis cell, the operator moves the suction pipe 6 to the designated position by the overhead traveling device 3, drives the reeling shaft 5 to rotate, unwinds the suction pipe 6, moves the bottom of the suction pipe 6 into the aluminum electrolysis cell, starts the negative pressure suction device 11, absorbs the insulation scraps in the aluminum electrolysis cell, and the insulation scraps enter the feeding cylinder 10 along the suction pipe 6. Then, under the action of the negative pressure suction device 11, the insulation scraps are transported to the discharging cylinder 13 through the discharge pipe 12;

[0057] Then, after the insulation scraps are absorbed, the suction pipe 6 is reeled up by the reeling shaft 5. After completion, the operator performs the subsequent anode replacement operation, and the insulation scraps are all moved into the block discharge chamber 17. The insulation scraps will move downward on the flexible screening layer 19, and the insulation scraps will be screened by the flexible screening layer 19. The screened insulation powder will pass through the flexible screening layer 19 and enter the powder discharge chamber 18. The insulation powder falls onto the surface of the circulating conveyor 20. Under the action of the scraper 21, the insulation powder moves into the storage box 2, and the insulation block is moved into the receiving hopper 22 and the block conveying pipeline 8. When the discharge pipe 4 moves downward, the block conveying pipeline 8 is driven to descend together. When the discharge pipe 4 conveys the insulation powder into the aluminum electrolytic cell, the block conveying pipeline 8 can also discharge the insulation block in time.

[0058] After the anode is replaced, the bending lifting frame 24 is driven downward to lower the discharge pipe 4 and the block conveying pipeline 8 together, so that the discharge pipe 4 is moved into the aluminum electrolytic cell, and the insulation powder is added to the surface of the anode carbon body in the aluminum electrolytic cell, and the insulation block can be discharged through the block conveying pipeline 8.

[0059] Embodiment 2: Based on the anode insulation material suction device, this embodiment 2 also proposes an anode insulation material suction method, which includes the following steps:

[0060] Step 1: Unwinding: After the operator completes the shelling operation on the surface of the carbonaceous body of the residual anode in the aluminum electrolysis cell, the operator moves the suction pipe 6 to the designated position by the overhead traveling device 3, drives the reeling shaft 5 to rotate, unwinds the suction pipe 6, and moves the bottom of the suction pipe 6 into the aluminum electrolysis cell;

[0061] Step 2: Suction: Start the negative pressure suction device 11 to absorb the heat-insulated scrap in the aluminum electrolytic cell. The heat-insulated scrap enters the feed cylinder 10 along the suction pipe 6. Then, under the action of the negative pressure suction device 11, the heat-insulated scrap is transported to the discharge cylinder 13 through the discharge pipe 12.

[0062] Step 3: Reset: After the insulation scraps are sucked, the suction tube 6 is reeled in by the reeling shaft 5. After completion, the operator can perform the subsequent anode replacement operation;

[0063] Step 4: Screening: All the heat-insulating scraps are moved into the block discharge chamber 17, and the heat-insulating scraps move downward on the flexible screening layer 19. The heat-insulating scraps are screened by the flexible screening layer 19, and the screened heat-insulating powder passes through the flexible screening layer 19 and enters the powder discharge chamber 18. The heat-insulating powder falls onto the surface of the circulating conveyor belt 20 and moves into the storage box 2, while the heat-insulating blocks are moved into the receiving hopper 22 and the block conveying pipeline 8.

[0064] Step 4, sorting: After the anode is replaced, the bending lifting frame 24 is driven downward to lower the discharge pipe 4 and the block conveying pipeline 8 together, so that the discharge pipe 4 is moved into the aluminum electrolysis cell, and the insulation powder is added to the surface of the anode carbon body in the aluminum electrolysis cell, and the insulation block can be discharged through the block conveying pipeline 8.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anode insulation material suction device, comprising a protective frame (1) and a material storage box (2), wherein the protective frame (1) and the material storage box (2) are both arranged on a crane mobile device (3), and a material discharge pipe (4) is connected to the material storage box (2), characterized in that: Also includes: A reeling shaft (5), a suction pipe (6) is wound on the reeling shaft (5), the reeling shaft (5) is rotatably arranged in the protective frame (1), a negative pressure suction structure is arranged in the reeling shaft (5), the negative pressure suction structure is connected to the suction pipe (6), and one side of the reeling shaft (5) is connected to a discharge structure; A screening box (7), the screening box (7) is connected to one side of the storage box (2), the screening box (7) is connected to the discharge structure, a material screening mechanism for screening the heat-insulating crushed material into heat-insulating powder and heat-insulating block material is provided in the screening box (7), and a block conveying pipeline (8) is provided on one side of the storage box (2). The heat-insulating powder is discharged into the storage box (2) through the screening box (7) and then discharged through the discharge pipe (4); The heat-insulating blocks are discharged through the screening box (7) into the block conveying pipeline (8), and the block conveying pipeline (8) is fixedly connected to the discharge pipe (4); The crushed material screening mechanism comprises: A sloped frame (16), the sloped frame (16) is fixedly connected to the screening box (7), a through groove is provided on the slope surface of the sloped frame (16), the sloped frame (16) divides the screening box (7) into a block material discharge chamber (17) and a powder material discharge chamber (18), and the powder material discharge chamber (18) is communicated with the storage box (2); A flexible screening layer (19), wherein the flexible screening layer (19) is provided in the through groove, and the flexible screening layer (19) is used to screen the heat-insulating crushed material into heat-insulating powder and heat-insulating blocks, and the heat-insulating powder falls into the powder discharge chamber (18); A circulating conveyor belt (20) is arranged in the slope frame (16) for transmission. A plurality of scraper plates (21) are fixedly connected to the outer side of the circulating conveyor belt (20). The scraper plates (21) are in contact with the bottom of the flexible screening layer (19). The scraper plates (21) drive the thermal insulation blocks on the surface of the flexible screening layer (19) to move downward. The scraper plates (21) also drive the screened thermal insulation powder to move into the storage box (2).

2. The anode insulation material suction device according to claim 1, characterized in that: The reeling shaft (5) is arranged in an inclined and rotatable manner within the protective frame (1); the interior of the reeling shaft (5) is set as a cavity; the negative pressure material suction structure is arranged in the cavity; a spiral fixing groove (9) is opened on the outer wall of the reeling shaft (5); and the material suction pipe (6) is in contact with the inner wall of the spiral fixing groove (9).

3. The anode insulation material suction device according to claim 2, characterized in that: The negative pressure material suction structure comprises: A feeding cylinder (10), wherein the feeding cylinder (10) is arranged in the cavity, and one end of the suction pipe (6) passes through the reeling shaft (5) and is in communication with the feeding cylinder (10); A negative pressure suction device (11), the negative pressure suction device (11) is located in the cavity, and a feeding end of the negative pressure suction device (11) is rotatably connected to the feeding cylinder (10); A discharge pipe (12) is connected to the discharge end of the negative pressure suction device (11).

4. The anode insulation material suction device according to claim 3, characterized in that: The discharge structure includes: A discharge cylinder (13), the discharge cylinder (13) is fixedly connected to one side of the winding shaft (5), the discharge cylinder (13) is communicated with the cavity, and the discharge pipe (12) extends into the discharge cylinder (13); Wherein, a discharge trough is provided on the circumference of the discharge cylinder (13); A material receiving sleeve (14) is rotatably sleeved on the outside of the material discharging cylinder (13), one side of the material receiving sleeve (14) is connected to a material discharge channel (15), and one side of the material discharge channel (15) is connected to the top of the screening box (7).

5. The anode insulation material suction device according to claim 4, characterized in that: A material receiving hopper body (22) is fixedly connected to one side of the material storage box body (2), the block material discharge chamber (17) is in communication with the material receiving hopper body (22), and the block material conveying pipeline (8) is in communication with the bottom of the material receiving hopper body (22).

6. The anode insulation material suction device according to claim 5, characterized in that: A lifting trough frame (23) is fixedly connected to one side of the material storage box (2), a bending lifting frame (24) is longitudinally slidably provided in the lifting trough frame (23), a concave fixing seat (25) is fixedly connected to the bottom of the bending lifting frame (24), and a plurality of guide wheels (26) are rotatably connected to both sides of the concave fixing seat (25), and the discharge pipe (4) and the block material conveying pipeline (8) are both located between the plurality of guide wheels (26) on both sides.

7. The anode insulation material suction device according to claim 6, characterized in that: The bottom of the protection frame (1) is connected to a transverse trough (27), a movable sleeve (28) is transversely slidably connected in the transverse trough (27), and the suction pipe (6) extends into the movable sleeve (28).

8. The anode insulation material suction device according to claim 7, characterized in that: The bottom fixed sleeve of the suction pipe (6) is provided with a counterweight ring sleeve (29).

9. A method for sucking anode thermal insulation material, using the anode thermal insulation material sucking device according to claim 8, characterized in that: The following steps are involved: Step 1, unwinding: After the operator completes the shelling operation on the surface of the residual anode carbon body in the aluminum electrolytic cell, the suction pipe (6) is moved to a designated position by the overhead crane mobile device (3), and the suction pipe (6) is unwound by driving the reeling shaft (5) to rotate, and the bottom of the suction pipe (6) is moved into the aluminum electrolytic cell; Step 2: Suction: Start the negative pressure suction device (11) to absorb the heat-insulating scraps in the aluminum electrolytic cell. The heat-insulating scraps enter the feed cylinder (10) along the suction pipe (6). Then, under the action of the negative pressure suction device (11), the heat-insulating scraps are transported to the discharge cylinder (13) through the discharge pipe (12); Step 3, resetting: after the heat-insulating scraps are sucked, the suction pipe (6) is reeled in by the reeling shaft (5), and after completion, the operator is allowed to perform subsequent anode replacement operations; Step 4, screening: All the heat-insulating crushed materials are moved into the block material discharge chamber (17), and the heat-insulating crushed materials will move downward on the flexible screening layer (19). The heat-insulating crushed materials will be screened by the flexible screening layer (19), and the screened heat-insulating powder will pass through the flexible screening layer (19) and enter the powder material discharge chamber (18). The heat-insulating powder will fall onto the surface of the circulating conveyor belt (20), and the heat-insulating powder will move into the storage box (2), while the heat-insulating block materials will move into the receiving hopper (22) and the block material conveying pipeline (8); Step 4: Sorting: After the anode is replaced, the bending lifting frame (24) is driven downward to lower the discharge pipe (4) and the block material conveying pipeline (8) together, so that the discharge pipe (4) is moved into the aluminum electrolytic cell, and the insulation powder is added to the surface of the anode carbon body in the aluminum electrolytic cell, and the insulation block material can be discharged through the block material conveying pipeline (8).

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